As I previously said, here the linux version of the packer! Tested with the original files and then compared both sysdata's (cmp linux cmd): they're the same!
@Sekra: i had to add some modifications, please see them

The usage is the same as the windows version...Included sources, object file (I don't know if it is really useful) and executable ready to use!

EDIT: the program works but maybe we should clean the sources a bit . I was thinking also to store them in google code (I...you must decide ), to keep track of changes and other things!